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DSST Physical Sciences Principles

Subjects : dsst, science

Instructions:

Answer 31 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. Neglecting air resistance - a ball in free fall near the earth's surface will have...
Near a maximum
12 miles per hour
Increasing speed and constant acceleration
Total internal energy of an object

2. When you add heat to a substance - its temperature...
Means less power is transmitted
Total internal energy of an object
Disorder
Might stay the same

3. If the mass of a cart full of groceries decreases of half and its speed doubles - the momentum of the cart...
Second principle of Centripetal force
Remains unchanged
Third principle of Centripetal force
Difference between the heat supplied and the heat exhausted

4. At a given speed - the centripetal force - the smaller the circle.
Less on the moon
Remains unchanged
Third principle of Centripetal force
Near a maximum

5. The heat involved in the change of phase of phase from solid ice to liquid water is called...
Waste heat for secondary uses
Newtons first principle of Universal Gravitation
Heat of fusion
First principle of Centripetal force

6. If a charging elephant has kinetic energy - it must also have...
Momentum
263 degrees kelvin
Newtons first principle of Universal Gravitation
Decreased

7. In a generator - the flow of electrons (current) is created by...
Total internal energy of an object
Movement
Might stay the same
5 m/s

8. The gravitational force - two masses are directly proportional to the mass of each object
Newtons second principle of Universal Gravitation
Movement
Decreased
Total internal energy of an object

9. Entropy refers to...
Decreased
Movement
Means less power is transmitted
Disorder

10. In burning coal - what contaminant is of major concern as a pollutant...
Halogen radicals interfering in ozone synthesis
Movement
Newtons second principle of Universal Gravitation
Sulfur

11. The gravitational force between two masses is inversely proportional to the square of the distance between those two objects.
Might stay the same
Newtons third principle of Universal Gravitation
12 miles per hour
Disorder

12. A temperature of -10 degrees celsius is equivalent to...
Momentum
Might stay the same
263 degrees kelvin
5 m/s

13. All objects with mass are attracted to another by the gravitational force
Near a maximum
Newtons first principle of Universal Gravitation
Momentum
Newtons second principle of Universal Gravitation

14. Which is not one of the fundamental forces of nature...
Halogen radicals interfering in ozone synthesis
Universal
Remains unchanged
Decreased

15. The weight of one kilogram of iron on earth is...
Sulfur
Less on the moon
Newtons third principle of Universal Gravitation
263 degrees kelvin

16. The larger the centripetal force - the faster an object travels in a circle of a given size
Heat of fusion
Less on the moon
Second principle of Centripetal force
Decreased

17. A ship travels 3 miles in 15 minutes what is its speed in miles per hour...
Difference between the heat supplied and the heat exhausted
Might stay the same
Increasing speed and constant acceleration
12 miles per hour

18. The theoretical production curve of oil indicates oil production is...
Sulfur
263 degrees kelvin
Less on the moon
Near a maximum

19. Raising an auto in a service station requires work. Raising it twice as high requires...
Newtons first principle of Universal Gravitation
Newtons second principle of Universal Gravitation
Difference in the sped of light in water vs. air
Twice the work

20. Electric power companies step up the voltage of generated power for transmission across the country because higher voltage...
Twice the work
5 m/s
Difference between the heat supplied and the heat exhausted
Means less power is transmitted

21. A 5 kg fish that is swimming toward it at a velocity that brings both fish to a halt. What is the speed of the smaller fish?
5 m/s
Sulfur
Remains unchanged
Near a maximum

22. Electromagnetic radiation can be viewed as...
Newtons third principle of Universal Gravitation
Total internal energy of an object
Waves and particles
263 degrees kelvin

23. From the 50's and to the 70's - the pH of rain in the northeast had..
Decreased
Universal
Total internal energy of an object
Twice the work

24. Circular motion requires centripetal force
Difference between the heat supplied and the heat exhausted
Increasing speed and constant acceleration
First principle of Centripetal force
Means less power is transmitted

25. The ozone hole results from...
Newtons third principle of Universal Gravitation
Might stay the same
Halogen radicals interfering in ozone synthesis
Movement

26. The reason that a spear fisherman cannot see where the fish is actually located is...
Universal
Third principle of Centripetal force
5 m/s
Difference in the sped of light in water vs. air

27. Increasing the frequency of light
Increases the energy
Momentum
Twice the work
Increasing speed and constant acceleration

28. Electrical energy can be converted to...
5 m/s
Waves and particles
Total internal energy of an object
Mechanical - chemical - and radiant energy

29. cogeneration uses...
Waves and particles
12 miles per hour
Mechanical - chemical - and radiant energy
Waste heat for secondary uses

30. The work that a heat engine is able to accomplish is ideally equivalent to the
Second principle of Centripetal force
Means less power is transmitted
Difference between the heat supplied and the heat exhausted
Newtons first principle of Universal Gravitation

31. Heat is the...
Second principle of Centripetal force
Total internal energy of an object
Halogen radicals interfering in ozone synthesis
Newtons third principle of Universal Gravitation